The boys' and girls' schools have (been) amalgamated to form a new comprehensive.
The boys' and girls' schools have (been) amalgamated to form a new comprehensive.
男校和女校联合而组成了一所新的综合中学.
The boys' and girls' schools have (been) amalgamated to form a new comprehensive.
男校和女校联合而组成了一所新的综合中学.